The experience is redesigned and more immersive due to a greater focus on the map content instead of navigation buttons. The new map tiles also look similar to the interface included in Apple’s proprietary iPhone, iPad, and iPod touch Maps software…

Google+ integration also seems to be bolstered with the ability for results to be drilled down to matches that have been recommended by those in your Circles.

It seems plausible that the new interface will officially debut at Google’s I/O conference next week.